Writing machine



May 15. 1928.

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May 15, 1928. Q 1,669,932

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A. A. EGLl WRITING MACHINE Filed March 29, 1923 l Sheets-Sheet 9 May 15,1928. 1,669,932

A. A. EGLI WRITING MACHINE Fi ed March 29, 1923 13 Sheets-Sheet l0 May15, 1928. 1,669,932

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Filed March 29, 1923 3 Sheets-Sheet 13 Patented May 15, 1928.

UNITED STATES PATENT OFFICE.

An ora accus heir, or seen, swi'w'zsizmnn, Accretion, BY MESNE ASSIGN-mnlv'rs, 'fo o'H'ocoLA'r T'OBI'JER noLniNe 00., AKTInnGEsELLscHAF'r, orsemifin- Han'sriiv, SWITZERLAND.

Application; filed March 29,- I923, Serial No This invention relates todriving arrangements for line by line writing machines andone of its ObeC-ts is to provide drlving mechanisms which enable such-machines tobeoperated without the operator having. to

exert more forcewhen manipulating the key board than in a case of a)good ordinary typewriter. Another object is to cause the machine toperform automatieall' all the operations that contribute the proc uctionof the finished print. To this enda main control wheel, from whack themotions for the various operations are derived, 1s arranged to becoupled and uncoupled at proper times to a prime mover or any suitablesource oi.

power. V 1 i r I -The invent on is shown by Way oi example ithe drawingm which Figs; 1 -1 are four difi'e'rent diagrammatic views of theentiremachine,

Fig. is a front elevation of a device for cmipl'ing the main controlwheel to a continuously working drive". Fig. 2 is a side view of thecoupling arrangement of Fig. 2,

-Fig. 3 is a diagrammaticelevation of the main control wheel and theparts directly moved by the same,

Fig. 4 shows anarrangement for driving for operating a spacingdevicewhich regw' lates the length of the lines to be printed,

Fig. 7 is a side view and Fig; 7 a plan viewof atypebar locking devicewhose parts have been brought intothe printing position.

Figs. 8* and 8 are a side view and a plan view respectively of an inkingdevice for inking a set line of types. Fig.8 is a front iew on anenlarged scale of the inking device, I

6 6 are a side view. front view.

WRITING MACHINE.

. 628,514, and in Germany December 11, 1922'.

Figs. 9, 9 9 are two side elevations and a plan view respectively of aplatenoperating device, Figs. 9 and 9 are'side views on an enlargedscale which illustrate the cooperation of the platen operating deviceand a device for preventing the platen from making an impression.

opening the aforesaid spacing device.

a plan view of a device for returning the typebars into th'eirmagazinesand f Fig. 12 shows the means for unlocking the magazines, and

the machine.

Referring-to thedra'wing, Figs. 1 4 an'd belt and a pulley X drives ashaft which carries a: worm X The worm X drivesaworm-Wheel X whichrotates on shaft X. Keyed to the shaft X is a pinion A which is in" meshwith a large wheel A which is the main control wheel or cam wheel of thewriting machine. Pivoted in brackets X supported by the frame of themachine is ahand-lever X whose bottom end is linked to a coupling o1-kXwhose bottom end is pivoted in ab'ra'cket X WVhen the hand lever' X isswung in the direction of the arrow 1 (Fig. through an angle of about 30the pdintlll is swung in the direction ofthearrow 2 so ast'o com i pressa spring X A spring hook X then Fig; 10 is a side elevation of a devicefor Fig. 13 is a side elevation showing all the parts illustrated inFigs. 4-12 assembled in p Figs. 11 and 11 are a side elevation andseizes a X and thus locks the coupling fork X in itsoperated position.When the coupling fork X is swung to the right as" described a clutch X1, splined to the shaft X is thrown into engagement with the worm wheelX so as to couple the motor with the driving pinion A "This pinion Athen rotates the cam wheel A which; as explained morefully'hereina'fter, is arranged so that. after it has executed onerevolution,

and a line of type has beenset and animpression taken, the cam wheel isuncoupled again. This uncouplingop'eration is performed automatically bya projection X arrai'rged on the inner surface of the wheel A the saidprojection being adapted to move a spindle K, Fig. 2, towards the leftagainst the pressure of thespri'ng X so as to swing the arm X" to theleft and lift the hook X out of engagement with the pin X. The spring Xthen throws-the coupling fork X towards the left to disengage theclutch.

To enable the motion of the cam-wheel A to be stopped at any moment, aspecial stopping lever or key Y (Figs. 2", 2") is provided which, whenmoved, pulls a rod Y upward. The rod Y is linked to an arm Y projectingfrom a hollow shaft Y journalled on the shaft of the crank handle X. Thehollow shaft Y is connected by an arm Y with a draw-rod Y connected tothe retaining hook or detent X that locks the couling fork X in itsoperated position. When the emergency key or stopping key Y is depressedthe rod Y with the hook or detent X is raised so as to release theclutch X. By this means the main cam wheel can be stopped at any moment.

If the driving motor should become defective the main driving shaft maybe rotated by a crank handle A (Figs. 1, 1") which acts through bevelwheels and a shaft A on a bevel wheel A keyed to the driving shaft Xthat carries the driving pinion A which meshes with the main cam wheel AAs shown in Fig. 3 the main cam wheel A has a round non-circular camgroove A in one of its flanks, and rollers or slide members, attached tothe ends of levers H St and D engage with'the cam groove. The other endsof the said levers are linked to toothed wheels H St and D and the teethof these wheels are thrown into, or out of, engagement with the teeth ofthe cam wheel A by the interaction between the cam groove A and the saidlevers. The cam wheel also carries a projection A which, during itsrotation, moves the level-sand members St, S S, N and H (Figs. 5", 6, 7,1O, 11 and 12) and thus produces motions that will be describedhereinafter.

Each of the magazines H Figs. 4 a, Z), 0 contains besides type barsspacing members of adjustable breadth. The shifting of the desired type,bar of each magazine and the desired type of the type bar 'by means ofthe keyboard is effected in the manner particularly described in thepatent to Schiifler 1,466,491. In the present case the spacing member ofadjustable breadth is to be selected and also to be brought into theprinting position by a key of the keyboard and the other moving means inthe same manner as a typebar. The spacing members are not inserted byhand as in the old patent. The adjustable breadth of the spacing membersis adapted to form together with the type bars utomatically an adjustedline.

When the registering operations for determining the types and spacingmembers that are to be brought into the printing position have beenperformed by means of the key board and the motor has thereupon beencoupled to the cam wheel A, the latter commences rotating in thedirection of the arrow 3 (Fig. 4:). During the rotation of this wheelthe groove A first acts through the lever H on the toothed wheel H (Fig.4!). The wheel H has no teeth at one part of its circumference, so thatas long as it is in the position shown in Fig. 4." no motion is impartedto it by the rotating cam wheel A But when the lever H swings the wheelH round, its teeth are brought into mesh with the teeth of the camwheel, and the wheel H is then rotated in the direction of the arrow 4(Fig. t). A crank H attached to the bar H is then rotated so as to movea lever pivoted at H into the position indicated by broken lines. An armH linked to the up. perd end of the lever H. then presses a bar H in thedirection of the arrow 5. The linkage H, H, H, H, H'" is arranged atboth sides of the machine so that the bar H is pressed forward in auniform manner. The bar H co-operates with registers H" each of whichhas a number of catches or engaging members-(not shown) which are set bythe keys of the keyboard in accordance with the positions into which thetypebar magazines H are to be raised. hen the bar H is pushed forward asdescribed, it co-operates with the set engaging members of the magazineregisters H and moves the latter from their normal positions (shown insolid lines into a position (indicated by broken lines that correspondsto their operated engaging members. lVhen the registers H are thus movedthey transmit their motion through links H, H to the typebar registersso as to raise them into the registered position as indicated in Fig. 4"by broken lines. )Vhen the main control wheel or cam wheel A has rotateda certain distance the parts moved by it,excepting the magazine,commence returning to their normal positions. The mag! azines are lockedin their raised position by means of the toothed wheel H that helped toraise them. To this end the wheel H is provided with a cam H whichbrushes against a lever H and thus moves a rod H in the direction of thearrow 6 (Fig. 4). The bar H moves amember provided with slanting slots Hand thus drives a locking member, whose pins engage with the slots Htowards the magazines H so as to lock the same in their raisedpositions. lVhen this locking operation is completed, the lever H isheld in its operated position (indicated in Fig. 4" by broken lines) bya lever H. The unlocking of the described magazine locking mechanism iseffected by the pin or projection A after the cam wheel A has rotatedfurther, and after the completion of the printing operation and therestoration of the typebars into their magazines. The unlockingoperation will be deto the registers.

On the further rotation of the cam wheel A the cam groove A operates alever S27 so as to cause a toothed wheel S13 similar to the wheel H tomesh with the teethof the cam wheel A The rotation now imparted to thewheel S25 results in the rotation of a crank lever St so that it goesinto the position indicated in Fig. 5 by broken lines and impartscorresponding movements to a link St. A linkage, similar to St SP, isalso arranged at the other side of the machine (see Fig. 5,) and bothlinkages act on a bar St which extends transversely through the machineand 'is moved forward in the direction of the arrow 7 by the saidlinkages. The bar St, when thus moved forward acts 'upon typebar andspacing members'registers St (Figs. 5 and 5) through engaging members(not shown) which are combined with the registers St and operated by thekeyboard in accordance with the amount of motion that is to be imparted(hen the registers St are moved forward they impart their motions toangular members St which operate thrust members St that push thetypebars and spacing members out of the magazines H onto the table S ofthe writing or printing machine.

The shaft of the toothed wheel St carries a cam S23 (Fig. 5 whichco-operates with a lever St so as to pull a rod Si downward when thewheel S23 is rotated at certain distance. The upper end ofthe rod St"carries a serratedplate St whose teeth or ridges co-operate with similarridges St on the thrustmembers S t so asto bring the thrust members Stinto alinement when the rod St is moved down-wards. The said serrationsonly remain in engagement with each ether for a brief interval. They aredisengaged by the spring (not shown). After a full turn of the wheel S1all parts indicated by the reference letters St (Figs. 5* to 5) willhave returned to their normal position, while the typebars V (Fig. 7remainon the table S of the machine. On the further rotation of the camwheel A a projection A (Figs. 6 6 6) comes into engagement with a rack Sand pushes the same forward. The teeth of this rack e11- gage with a.toothed wheel S fixed to a vertical shaft S whose top end carries acrank S which acts on a rod S linked to arack S. The rack. S meshes witha toothed wheel S which, in turn, meshes with a second rack S lVhen therack S is moved by the crank S and the link S the toothed wheel S isturned and moves the rack S in a direction opposite to the direction ofmotion of the rack S. These motions are used for operating a spacingdevice. The

spacing device comprises sheet metal plates S which are adapted to bemoved towards each other and to press together thetype. bars that havebeen pushed into thelspace' between. them by the tlirust members S5 1Elastic or spring spaces are inserted between the typebars so that, whenthe member's- S of the spacing device are moved towards each other, thetyp'ebars are pushed together and the length of thel-in'e of types to beprinted is adjusted.

\Vhen the rack S is pushed forward it also rotates a toothed wheel Sjour'nalled on a horizontal axis and adapted to impart motion to a bar Sso as to move it intothe position indicated by broken lines. This motionof the bar S is a preparatory action for the reopening or restoration oftheSpacing device which will be explained more fully hereinafter.

The rack S also has a recess V (Fig. 7 in its lower edge by which bars-V,-arranged at both sides of the machine, Figs. 7, 7", are pulleddownward. By this motion-of the rods V ridged bars V are brought intoengagement with notches in the top edges of the type-bars V*, thetypebars V being thus finally alined and locked in their printingpositions.

The typebars having been locked, the inking mechanism (Figs. 8, 8*, 8 isnow brought into operation this operation being initiated by a cam diskF mounted onv the shaft of a toothed wheel D which is devoid of teeth ata part-of its circumference like the wheels A and SF. As soon a stl'rewheel D is brought into mesh with the main control wheel A the cam diskF is rotated and a roll F engaging with acam groove F in the cam diskimparts motion to a lever F pivoted at E The free end of the lever Fcarries a toothed segment F which transmits motion through a wheel Fprovided with two rings of teeth, to a roll or drum F l/Vound' upon thedrum F is a flexible menn her or chain F which passes over guide rollersF 'and isconnected to a carriage F guided by a slide bar F The chain Fmoves the carriage F to and fro periodically over the set lines of typesas will be explained more fully hereinafter; Mounted on the carriage areinking rollers F which can be raised or lowered by adjusting screws FThe ink'is taken from an ink applier consisting of an ink well F fromwhich the ink is taken by an ink dispenser F which transfers the ink toa rollerF. F is an ink transferring member that trai-lsil ers the ink toinkspreaders F and finally toan inking cylinder F The mechanism asso Iciated with the ink well is driven directly by the motor through a beltF so that this mechanism also operates during the time that the maincontrol wheel A isstationary. The cylinders F transfer the ink to theink ing rollers F that are guided the car main control wheel A, acts,during its further rotation, on a device by means of which the platen,which carries the paper, is pressed against the set line of types. ,Theplaten rocker and its coordinated mechanisms are shown in Figs. 9 to 9.Mounted on the shaft of the wheel D? is a cam D which, when rotated,acts on linkages D, D, I

' D arranged at both sides of the machine,

and thus causes the platen D to be moved from the normal position shownin Fig. 9 into the printing position indicated in this figure by brokenlines. After the impression the platen is restored by spring power toits normal position and is stepped round (by a line spacing device, notshown) a distance corresponding to the distance between two successivelines.

If for any reason the setline of type is not to be printed, the printingoperation can be inhibited by means of a foot lever D. This, isconnected by a linkage D, D through a lever D (Figs. 9 and 9) clampedupon a sleeve 1). The sleeve D has an excentric bore in which a pin D isfitted that is connected to a lever D. It the .lever D is turned throu han an de of 90 as shown in Fig. 9 by treading on the foot lever 13", thecenter of rotation of the lever D is raised from the level 71. through adistance z to the level It. The cam D associated with the toothed wheelD will now still act on the lever D so asto swing down the platen. Butas the center of rotation of the lever D has been raised through the distance z the platen will not swing down far enough to take an impressionfrom the set line of types, butwill stop at a distance corresponding to2 from the said line of types. After the toothed wheel D has executed afull turn the inking carriage will return to its normal position. Thisis accomplished by means of the cam groove F (Fig. 8) which moves backthe lever F and the chain F after the wheel D and the disk F have beenturned into a position in which they -wheel S is thus turned clockwiseand the spacing deviceS S (Figs. 6 is thus restored to its normalposition and the locking bar V. (Fig. 7 is moved back into'itsnonlocking position.

On the further rotation of the main control wheel A the projection A(Fig. 11) strikes against a lever N which, by means of a link U pulls arack N 3 downward and, through. gear wheels N. N". N" moves the racks N(Figs. ii and 11") towards the right which are arranged at both sides ofthe machine. By this means a following up plate and preferablyconsisting of two parts to enable its length to be ad usted is moved inthe direction of the arrow 9 (Fig. 11) so that its lingers push thetype-bars V, and if necessary the spacing members between the words,back into the magazine.

compartments. As soon as the projection A leaves the lever N the parts i2 to i return to their normal positions. The fo1 lowing up plate N ispreferably serrated or provided with fingers (see Fig. 11") at its frontedge by which the typebars are pushed entirely into the magazines.

Shortly before the main control wheel A has executed a full turn, theprojection A encounters a three-armed lever H (see Fig. 12), whose arm Hmoves the lever H into the position indicated by broken lines. By thismeans the locking of the magazines described with reference to Fig. 4"is undone, so that the locking member H allows the magazines to dropdowninto their normal positions. I

The main control wheel A having now executed a full turn, is uncoupledfrom the drive by means of the projection X and the longitudinallydisplaceable bar X. When a new line of type is now registered with theaid of the keyboard the cam wheel A is again coupled to the drive andall the motions hercinbefore described are repeated.

I claim 1. In a writing machine, movabletypebar magazines, in themagazines movable typebars and spacing members of adjustable breadthadapted to determine the spaces between any two words, magazineregisters for determining the position into which the magazines are tobe moved, second registers for determining the type on any typebar or aspacing member, that is to be moved into the printing position, movingmeans in com bination with a said second register for'moving the saidtypebars and spacing members out of the magazines immediately into theprinting position and a motor drive for moving the magazines into theirregistered positions and for thereupon moving the typehars and thespacing membersinto their registered positions.

9.. In a writing machine, movable typebar magazines, in the magazinesmovable ty )ebars and spacing members of adjusta le breadth adapted todetermine the spaces between any two words, magazine registers IOU fordetermining the position into which the magazines are to be moved,second registers for determining the type on any typebar or a spacingmember, that is to be moved into the printing position, pushing means incombination with a said second register for pushing the said typebarsand spacing members out of the magazines immediately into the printingposition and a motor drive for moving the magazines into theirregistered positions and for thereupon moving the typebars and thespacing members into their registered positions.

3. In a writing machine, movable typebar magazines, in the magazinesmovable typebars and spacing members of adjustable breadth adapted todetermine the spaces between any two words, magazine registers fordetermining the positions into which the magazines are to be moved,registers for determining the type on any typebar or a spacing memberthat is to be moved into the printing position and a motor drive formoving the magazines into their registered positions and for thereuponmoving the typebars and the spacing members into their registeredpositions.

4. In a writing machine, movable typebar magazines, movable typebars inthe magazines, keys, registers operable by the said keys for determiningthe magazines to be moved and the types on the typebars that are to bemoved into the printing positions, means for setting the magazines intotheir registered positions, and locking means adapted to engage themagazines on their back side and to lock the magazines them selves intheir set positions while the setting means return to their normalpositions.

5. In a writing machine, movable typebar magazines, movable typebars inthe magazines, means for moving the typebars out of the magazines intothe printing position, and separate aligning means for exactly aligningthe typebar movers after their first moving action.

6. In a writing machine, movable typebar magazines, movable typebars andspacing members of adjustable breadth in the magazines,ma-gazineregisters for determining the positions into which themagazines are to be moved, typebar and spacing member that is to bemoved into the printing position, and a determining device for pressingtogether the moved typebars and spacing members and thereby determiningthe length of a line of type in the printing position and for returningthe typebars and the spacing members to their positions before themagazines.

7. In a writing machine, typebars and spacing members adapted to bemoved into a printing position, a. determining device for determiningthe length of a line of type and for restoring the typebars and spacingmembers to their normal distances apart from each other, two operatingparts for operating the determining device, a fixed rotatable toothedwheel, a rack connected to each of the said two parts and in mesh withthe said wheel and means for moving one said part.

8. In a writing machine, typebars and spacing members adapted to bemoved into a printing position, a determining device for determining thelength of a line of type and for restoring the typebars and spacingmembers to theircnormal distances apart from each other, two operatingparts for operating the determining device, a fixed rotatable toothedwheel, a rack connected to each of the said two parts and in mesh withthe said wheel and motor driven means for moving one said part.

9. In a writing machine, movable typebars, movable typebar magazines,key-operated registers for determining the positions into which themagazines and typebars are to be moved, means for moving the typebarsout of the magazines and back, locking means for locking the magazinesin their determined positions until the typebars have been returned intothem, typebar shifters controlled by the said registers, primaryaligning means for aligning the typebar shifters, secondary aligningmeans for aligning and looking a line of type formed by the typebars, aspacing device for determining the length of a line of type and forguiding the typebars back to the magazines, an inking device for inkinga line of type, means for restoring the said locking means, means forrestoring the registers and the typebar and magazine moving means totheir normal positions after the operation of the said locking means anda common motor drive for operating all said movable parts of themachine.

10. In a writing machine, typeba-r 1nagazines, typebars in the saidmagazines, means for moving the said typebars out of the magazines intoa printing position so as to form a line of type, notchesin the upperside of the said typebars. and a. device for aligning the said line oftype being adapted to be moved so as to engage thesaid typebars whenthey are in their printing position. the said device consisting of twobars each provided with a rib and being arranged at a certain distanceapart from each other so as to permit of the platen entering betweenthem.

In testimony whereof I have aflixed my signature.

ARNOLD AUGUST EGLI.

